See all Universal & Repair products
Product thumb
HPS Performance Products Blue 3.75 to 4 Inch 4-Ply Reinforced Silicone Reducer Coupler Hose
$67.96

HPS 3-3/4" - 4" High Temp Silicone Reducer Coupler Hose

If you’re looking to enhance your vehicle’s performance and durability, the HPS 3-3/4" - 4" (95mm - 102mm) High Temp 4-ply Reinforced Blue Silicone Reducer Coupler Hose is a solid choice. This coupler hose is engineered to meet and exceed SAE J20 industry standards, making it perfect for heavy-duty pressure connections in high-temperature environments. Whether you're tackling a custom turbo setup or upgrading your intercooler piping, this hose is designed to perform.

Fitment

This silicone reducer coupler hose is suitable for a variety of applications, including:

  • Custom turbo and intercooler piping fabrication
  • DIY intake or radiator cooling systems
  • Marine and industrial use

It’s essential to ensure that your specific vehicle model can accommodate the dimensions of this coupler for optimal performance.

Technical Specifications

  • Product Type: Silicone Reducer Coupler Hose
  • Color: Blue
  • Inside Diameter: 3.75" - 4" (95mm - 102mm)
  • Outside Diameter: 4.13" - 4.41" (105mm - 112mm)
  • Length: 3"
  • Reinforced Layer: 4-ply Polyester
  • Max. Temperature Rating: 350°F (177°C)
  • Wall Thickness: 4.5mm (+/- 0.5mm)
  • UV and Ozone Resistant: Yes
  • Oil-Resistant: No (Not compatible with fuel or oil)
  • UPC: 648044837185

Customer Feedback

Owners of various models have shared their experiences with this coupler hose:

  • A 2021 Ford F-150 owner noted, "I used this coupler for my custom intercooler setup. It fit perfectly and handled the boost pressure without any issues. The blue color looks great under the hood!"
  • A 2018 Subaru WRX enthusiast mentioned, "Installed this on my WRX for my DIY intake project. It provided a solid connection and the high-temp resistance gives me peace of mind during spirited drives."

Upgrade your vehicle's plumbing with the HPS High Temp Silicone Reducer Coupler Hose, and experience the difference in performance and reliability. Whether you're on the track or the street, this hose is built to last.

Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

HPS Performance Products Logo

About HPS Performance Products

HPS Performance Products is a leading manufacturer of aftermarket performance parts, fabrication components, and silicone hoses. HPS serves a number of different industries, including automotive, aerospace, construction, commercial truck/bus, marine, agricultural, turbo diesel, off-road, performance racing, general manufacturing, and water treatment. The company’s ability to fabricate custom-shaped multiply silicone hoses make it ideal for a wide range of applications. The multiply carcass makes HPS’ hose perfect for coolant and turbocharged pressure applications while the fluoro-silicone-lined hoses make it safe to be used with petroleum-based oil and fuel.

HPS Performance Products is committed to meeting its original goals of producing quality parts at competitive pricing and providing customer service responses in a personal, timely manner. All HPS products have been thoroughly tested on the dyno and track, and meet or exceed SAEJ20 standards. The HPS staff has solid expertise in the silicone hose department, which allows them to deliver standard size silicone hoses with same-day shipping. HPS’ highly skilled and knowledgeable team, paired with the latest state-of-the-art technology, ensures the brand’s continued success and reputation as a premier manufacturer in the industry 

HPS Quality Silicone Hoses

HPS Performance Products specializes in and is best known for manufacturing multi-application silicone hoses. HPS silicone hoses are carefully crafted from only the highest quality 4-ply reinforced high-temperature material. The hoses are available in the following varieties: straight coupler, 1-foot tube, 3-foot coolant tube, charge air cooler hose (CAC), hump coupler, reducer couple her, 45-degree elbow coupler and reducer, and 90-degree elbow coupler and reducer.

HPS Performance Products also carries performance silicone vacuum hoses and silicone heater hoses. You can choose silicone hoses in both standard inch and hard-to-find metric sizes. Stainless steel T-bolt clamps are available to match with the silicone hoses as well. In order to meet the high demand and shorten the turnaround time for its silicone hoses, up to 90 percent of the product is already in stock and ready to ship or pick up from HPS authorized dealers like Vivid Racing. 

HPS Performance Products at Vivid Racing

Vivid Racing carries a comprehensive lineup of HPS Performance Products for a number of different makes, models, and applications. Our extensive inventory of HPS parts includes aluminum tubing, cold air and short ram intakes, vacuum lines, hoses and clamps, intercooler pipes, radiator caps, and much more! If you have any questions regarding the items listed above or have fitment concerns, please contact our expert sales team at (480) 966-3040. We are here to help you through the entire purchase process and make it a pleasant experience.

Check out these other great products